Draco - Arp 330

[Mike JW]

Last night was very transparent. Despite no true darkness, at the zenith mag 5.4 stars visible but unsteady skies. I had a look at several Arps last night but Arp 330 is a particularly good one. It is classified in the "galaxy chains" section of Arps for obvious reasons but I am not sure how many galaxies Halton Arp included so I have ringed the ones in the chain. Note the bottom circle has 3 galaxies in it as does a circle off to the right. They are mainly mag 16 -17 galaxies. The third ring up is a mag 19 galaxy as maybe some of the other fainter ones in the shot. All of these were way beyond my 20" Dob.  C11 @ f6.3, ultrastar mono.  Mike

[Bill S]

That's good. I'll have to have a look out for that. Amazing what can be seen even though we are living in the astronomical twilight zone at this time of year.

[Paul73]

Like a galactic version of Kemble's Cascade! Mag 20 is crazy faint!

Mr Arp’s catalog must be like the Messier list for EEAV.

Paul

[Mike JW]

I agree Paul. I had the same thought about the link to  Kemble's Cascade. Mike